文青波

博士生导师 硕士生导师

所在单位:粉末冶金研究院

学历:博士研究生毕业

办公地点:中南大学本部校区三一大楼617

性别:男

联系方式:wentsingbo@csu.edu.cn

学位:工学博士学位

在职信息:在职

毕业院校:达姆施塔特工业大学(德国)

学科:材料科学与工程

曾获荣誉:

2018-03-05  当选:  玛丽居里优秀研究计划奖

2011-05-31  当选:  桑德环境奖学金优秀论文特等奖

2010-11-30  当选:  湖南大学长江环境奖学金

2009-05-31  当选:  湖南省优秀大学毕业生

2008-11-30  当选:  国家奖学金

2007-11-30  当选:  国家奖学金

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Mechanical properties and electromagnetic shielding performance of single-source-precursor synthesized dense monolithic SiC/HfCxN1-x/C ceramic nanocomposites

发布时间:2021-09-03

点击次数:

影响因子:7.39

DOI码:10.1039/C9TC02369K

发表刊物:Journal of Materials Chemistry C

摘要:For the first time, single-source-precursor synthesized dense monolithic SiC/HfCxN1−x/C ceramic nanocomposites with outstanding electromagnetic (EM) shielding performance at temperatures up to 600 °C are reported. The total shielding effectiveness (SET) of the SiC/HfCxN1−x/C monolith is >40 dB at 600 °C, which is superior than most of the reported EM shielding materials under the same conditions. Compared with a Hf-free SiC/C monolith, the SiC/HfCxN1−x/C monolith possesses superior EM shielding performance due to the presence of a highly conductive HfCxN1−x phase. Moreover, the HfCxN1−x-particles are covered by a carbon layer forming core–shell nanoparticles connected with graphite-like carbon ribbons, which result in electrically conductive networks within the semiconducting β-SiC matrix. In addition, the hardness, Young's modulus and flexural strength of the dense SiC/HfCxN1−x/C monolith are measured to be 29 ± 4 GPa, 381 ± 29 GPa and 320 ± 25 MPa, respectively. The outstanding EM shielding performance combined with excellent mechanical properties of the dense monolithic SiC/HfCxN1−x/C nanocomposites provides a novel strategy to fabricate EM shielding materials for applications in harsh environments and/or under high mechanical load.

合写作者:Xingmin Liu, Bruns Sebastian, Xiaowei Yin, Mirva Eriksson, Zhijian James Shen, Ralf Riedel

第一作者:Qingbo Wen

论文类型:期刊论文

通讯作者:Zhaoju Yu

文献类型:J

卷号:7

期号:34

页面范围:10683-10693

是否译文:

发表时间:2019-08-14

收录刊物:SCI

发布期刊链接:https://pubs.rsc.org/en/content/articlelanding/2019/tc/c9tc02369k

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